National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Partly Cloudy

37°F

3°C

Humidity 57%
Wind Speed S 12 mph
Barometer 30.32 in (1027.0 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 19 Mar 10:56 am EDT
Extended Forecast for

South Dennis MA

  • Today

    Today: Partly sunny, with a high near 38. Southeast wind 3 to 6 mph.

    High: 38 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 45. West wind 6 to 15 mph becoming south in the afternoon. Winds could gust as high as 25 mph.

    High: 45 °F

    Sunny

  • Friday Night

    Friday Night: Rain likely, mainly after 3am. Mostly cloudy, with a low around 37. Breezy, with a south wind 16 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Chance Rain
    and Breezy
    then Rain
    Likely

  • Saturday

    Saturday: Rain likely, mainly before 10am. Partly sunny, with a high near 49. West wind 8 to 10 mph. Chance of precipitation is 60%.

    High: 49 °F

    Rain Likely
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36. West wind around 6 mph.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 48. Southwest wind 6 to 9 mph.

    High: 48 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain likely after 7pm, mixing with snow after 5am. Mostly cloudy, with a low around 33. Southwest wind around 7 mph. Chance of precipitation is 60%.

    Low: 33 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Monday

    Monday: Rain and snow likely before 11am, then a chance of rain. Mostly cloudy, with a high near 43. Northeast wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 43 °F

    Rain/Snow
    Likely then
    Chance Rain

Detailed Forecast

Today
Partly sunny, with a high near 38. Southeast wind 3 to 6 mph.
Tonight
Partly cloudy, with a low around 31. Calm wind.
Friday
Sunny, with a high near 45. West wind 6 to 15 mph becoming south in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Rain likely, mainly after 3am. Mostly cloudy, with a low around 37. Breezy, with a south wind 16 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain likely, mainly before 10am. Partly sunny, with a high near 49. West wind 8 to 10 mph. Chance of precipitation is 60%.
Saturday Night
Mostly cloudy, with a low around 36. West wind around 6 mph.
Sunday
Mostly cloudy, with a high near 48. Southwest wind 6 to 9 mph.
Sunday Night
Rain likely after 7pm, mixing with snow after 5am. Mostly cloudy, with a low around 33. Southwest wind around 7 mph. Chance of precipitation is 60%.
Monday
Rain and snow likely before 11am, then a chance of rain. Mostly cloudy, with a high near 43. Northeast wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 28. North wind around 8 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 38. North wind around 8 mph.
Tuesday Night
Partly cloudy, with a low around 29. West wind around 6 mph.
Wednesday
Mostly sunny, with a high near 44. Southwest wind 7 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
3:02 am EDT Mar 19, 2026
Forecast Valid:
11am EDT Mar 19, 2026-6pm EDT Mar 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation